| Hedum castellum | |
| Map Type: | Bosnia and Herzegovina |
| Coordinates: | 44.0199°N 18.2646°W |
| Location: | Breza, Zenica-Doboj Canton, Bosnia and Herzegovina |
| Condition: | Ruined |
Hedum castellum was an ancient city located in central Bosnia, in the modern-day town of Breza, Bosnia and Herzegovina. The name Hedum Kastelum means "Inhabited Castle", or in . The city was also the capital of the Illyrian tribe Daesitiates. Today, only the Basilica and some grave tombs remain.[1]